<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no">
  <link href="https://cdn.bootcss.com/minireset.css/0.0.2/minireset.min.css" rel="stylesheet">
  <link rel="stylesheet" href="//at.alicdn.com/t/font_791609_skdx7s5sw8j.css">
  <title>21-mobile</title>
</head>

<body>
  <div id="app"></div>
  <!-- built files will be auto injected -->
</body>
<script>
  (function (doc, win) {
    var docEl = doc.documentElement,
      resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
      recalc = function () {
        var clientWidth = docEl.clientWidth;
        if (!clientWidth) return;
        docEl.style.fontSize = 100 * (clientWidth / 750) + 'px';
      };
    if (!doc.addEventListener) return;
    win.addEventListener(resizeEvt, recalc, false);
    doc.addEventListener('DOMContentLoaded', recalc, false);
  })(document, window);
</script>
</html>
